Gaithersburg, MD, USA
Einbeck, Lower Saxony, Germany
Potomac, MD, USA
Pforzheim, Baden-Württemberg, Germany
Kevelaer, North Rhine-Westphalia, Germany
Würzburg, Bayern, Germany
Krefeld, North Rhine-Westphalia, Germany
Washington, DC, USA
Weeze, North Rhine-Westphalia, Germany
Nassau, New Providence, Bahamas